Some Swiss researchers just finished a study on 5 major volcanic eruptions in the 1800's and they figure earth experienced a gear shift in its climate. Apparently they know one polarity shift happened ...

Chainsaws and pole saws both operate in similar ways, yet their uses are fundamentally different. If you're new to the world of power tools, you may be wondering which tool is the right pick for the ...

Basically the worst effects aren’t that bad. Lose the ozone layer and there’s trouble, but a little spurt of ionizing radiation from time to time doesn’t do that much. Click to expand... The magnetic ...